21796012

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^2\times {\mathrm{421}}^1$

素因数の和:518

約数の個数: 36

約数和(自身を含む): 44735376

約数和(自身を除く): 22939364

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 421, 602, 842, 1204, 1684, 1849, 2947, 3698, 5894, 7396, 11788, 12943, 18103, 25886, 36206, 51772, 72412, 126721, 253442, 506884, 778429, 1556858, 3113716, 5449003, 10898006, 21796012]

約数ペア:

[(1, 21796012), (2, 10898006), (4, 5449003), (7, 3113716), (14, 1556858), (28, 778429), (43, 506884), (86, 253442), (172, 126721), (301, 72412), (421, 51772), (602, 36206), (842, 25886), (1204, 18103), (1684, 12943), (1849, 11788), (2947, 7396), (3698, 5894)]